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Rickenbacker International Corporation - Forum • View topic - Loud noise

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 Post subject: Re: Loud noise
 Post Posted: Fri Aug 24, 2012 6:29 pm 
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Posts: 73
Location: lynbrook, ny
Mystery solved. I know high-gains have a reputation for sometimes being a little noisy but not like this. The noise was as loud as the signal. I replaced the pickups and now all is well. There was nothing visibly wrong with the old pickups so I was baffled. Then I thought what if they were exposed to a strong magnetic field? I wracked my brain and then it hit me. My studio monitors. From a past experience I knew they give of a strong field. In fact the problem first occured when I was recording direct. I can't imagine another explanation.


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 Post subject: Re: Loud noise
 Post Posted: Fri Aug 24, 2012 6:58 pm 
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Location: lynbrook, ny
Sorry for the near-duplicate posts. It didn't appear for several minutes so I stupidly wrote it again.


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 Post subject: Re: Loud noise
 Post Posted: Fri Aug 24, 2012 9:12 pm 
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Location: lynbrook, ny
I forgot to mention. My monitors are self-powered. Four-hundred watts.


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 Post subject: Re: Loud noise
 Post Posted: Sat Aug 25, 2012 3:28 pm 
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 Post subject: Re: Loud noise
 Post Posted: Sun Aug 26, 2012 6:42 am 
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Joined: Fri May 14, 2010 6:03 am
Posts: 73
Location: lynbrook, ny
A little history. About 10 years ago I was at a mall and on a silly whim I bought a model solar system. It consisted of concentric metal rings each with a planet, that revolved around the sun via an electromagnet in the base. One day I was looking for a better place to display it and as I passed my recording setup the planets froze in place. When I pulled it back they began turning again. Moved forward, they stopped again. It was then that I realized my powered monitors gave off a powerful magnetic field. Fast-forward to about six months ago. I had forgotten about the solar system experience and I had the guitar plugged into the recording system about three feet from the monitors. That was when I first started hearing the noise. There's the answer. I'm not savvy enough to know if any loudpseaker emits a strong field but I doubt it. I'm sure it's the 400-watt amplifier contained in these monitors that is the culprit.


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 Post subject: Re: Loud noise
 Post Posted: Mon Aug 27, 2012 9:20 am 
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Joined: Mon Aug 08, 2005 1:00 pm
Posts: 4038
Location: Santa Ana, CA
Both loudspeakers and mains transformers as used in many power amps have the potential to have magnetic fields surrounding them. However, especially with gear intended to be used near analog displays, these components are shielded to minimize the effect.

However, I have a hard time imagining a magnetic field that would damage your pickups; I don't think for a minute that this was the source of your problem. While a pickup itself may have been defective, I think in the course of the replacement, you solved the problem, perhaps entirely inadvertently. But whatever works!


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 Post subject: Re: Loud noise
 Post Posted: Tue Aug 28, 2012 3:27 am 
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Joined: Fri May 14, 2010 6:03 am
Posts: 73
Location: lynbrook, ny
But both pickups had the same malfunction and were fine when I first acquired the guitar.


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 Post subject: Re: Loud noise
 Post Posted: Mon Sep 03, 2012 6:47 pm 
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Joined: Thu Jan 06, 2011 10:08 pm
Posts: 227
Location: Jackson, Mississippi
Yeah, I'm equally as suspicious as JH (although much less qualified to make a diagnosis) - there's no way this was the first electric guitar (or even the first Rick) to be played in front of 400w self-powered monitors.


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 Post subject: Re: Loud noise
 Post Posted: Tue Sep 04, 2012 8:56 am 
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Yeah, I was looking at our standard setup, and there's about 7800 watts right up there on stage with us!


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 Post subject: Re: Loud noise
 Post Posted: Thu Oct 11, 2012 12:48 pm 
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Joined: Thu Aug 11, 2005 1:00 pm
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Location: Texas


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